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copied!<p>There's a good chance that Apache can read the tmp directory, but that approach smells bad. My approach would be to have PHP read the file and send it to the user. Basically, you send out the appropriate HTTP headers to indicate what type of content you're sending and what name to use for the file, and then you just spit out the file with echo (for example).</p> <p>It looks like there's a good discussion of this in another question:</p> <p><a href="https://stackoverflow.com/questions/386845/http-headers-for-file-downloads">HTTP Headers for File Downloads</a></p> <p>An additional benefit of this approach is that it leaves you in full control because there's PHP between a user and the file. This means you can add additional security measures (e.g., time-of-day controls), pull the file from various places to distribute bandwidth usage, and so on.</p> <p>[additional material]</p> <p>Sorry for not directly addressing your question. If you're using PHP to serve the files, they need not reside in the Apache web root, just where Apache/PHP has file-system read access to them. Thus, you can indeed simply store them in /tmp and let the OS clean them up for you. You might want to adjust the frequency of those clean-ups, however, to keep volume at the level you want.</p> <p>If you want to ensure that access is reliably denied after a period of time or a certain number of downloads, you can store tracking information in your database (e.g., a flag on the user to indicate that they've downloaded the file), and then check it with your download script and possibly deny the download. This effectively separates security of access from frequency of cleanup, two things you may want to adjust independently.</p> <p>Hope that's more helpful....</p>

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